A teaching–learning tool for elementary psychrometric processes on psychrometric chart using MATLAB

Abstract

A teaching–learning tool for elementary psychrometric processes on psychrometric chart is developed using MATLAB. First, coding was done in MATLAB to represent the psychrometric chart showing various properties. Secondly, calculations for obtaining various psychrometric parameters of air–water vapor mixture given any two input parameters were coded. Graphical user interface (GUI) was created for user input while the various elementary psychrometric processes are output on psychrometric chart prepared using MATLAB. The software tool was thoroughly validated against results in open literature. Students in different groups were taught basics of Psychrometry with different teaching approaches. Student group exposed to teaching with the developed tool performed much better than other groups. Students’ response in a survey revealed that the MATLAB‐based teaching–learning tool increased students’ performance significantly over the conventional approach. © 2017 Wiley Periodicals, Inc. Comput Appl Eng Educ 25:458–467, 2017; View this article online at http://www.wileyonlinelibrary.com/journal/cae; DOI

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